Let's look for the answer to your question.
A car or train is traveling at 60 mph. If the rate of speed increases 4 mph each hour, how long will it be before the car is traveling at a rate of 80 mph?
It is an easy math question. Lets look the answer together.
A) 4 hours
B) 5 hours
C) 6 hours
D 7 hours
Solution:
The speed increases 4 mph every hour from 60 to 80.
80 mph – 60 mph = 20 mph.
20 mph / 4 mph = 5 hours 🙂 Answer is B.
Riddle: I have 10$. My mother gave me 5 dollars. My aunt gave me 15$. Now, how much money did I have?
It may seem like a simple riddle but it is not. We have to pay attention to a few words. Especially to the last part of the riddle 🙂 Let’s look step by step.
My mother an my aunt gave me 20 dollars in the past. It is not clear now if these dollars are still standing. It also says “now” at the end of the riddle. For this reason, I cannot count the 20$. I received from my mother and aunt.
How much money did I have riddle answer is 5 $
Riddle: A snail climbs a 15 m tree. It climbs 5m every day and sleeps at night. While sleeping it slides down by 4 m. When does it reach the top?
This is an intresting math question. The correct answer is not 15 meters, of course. Lets’ look the correct answer step by step.
First day, snail clims 5 m and slide down 4 m. It went forward 1 m in total.
Second day, snail clims 5m an slide down 4m. It went forward 2 m in total…
10th day, it went away 10 m in total.
11th day, it climbs 5m and reaches the top before it sleeps again.
So, answer is 11 days.
Riddle: There are 12 men on an island. 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. You must figure out which. The island has no escapes, but there is a seesaw. The exciting catch? You can only use it three times.
It is both a real puzzle and a real question of intelligence. It is a good question that you can have fun with your family or friends. Let’s tell the solution step by step.
First, let’s divide 12 people into groups of 4.
As a second step, Let’s put 2 groups of 4 people on seesaw. If it is the same, the slightly lighter is in the 3rd group. If it doesn’t come in equal weight, let’s separate the lighter group. In this way, we find the group of 4 with the slightly lighter or heavier person. We used the seesaw firts time.
Let’s divide 4 people into 2 groups. Then, Let’s take 2 people on the seesaw and find the light or heavy one. In this way, we will find the person we are looking for in a maximum of 2 attempts.
Matematik zeka sorusunda 3 basamaklı şifremizi arıyoruz. Sorumuz şu şekilde;
147 bir rakam doğru ama yeri yanlış
189 bir rakam doğru ve yeri doğru
964 iki rakam doğru ama yerleri yanlış
286 bir rakam doğru ama yeri yanlış
523 tüm rakamlar yanlış … O halde şifren nedir ?
Çözüme geçersek adım adım verilen bilgileri kullanarak elemeler yapacağız. Tüm rakamları bir kağıda yazıp elediklerimizin üzerini karalamak kolaylık olacaktır.
1. adımda 147 verilmiş. Sadece bir rakam doğru ama yeri yanlış olduğundan eleme yapamayız.
2. adımda 189 verilmiş. 1 rakam doğru ve yeri de doğru olduğundan 1. adımla birleştirip 1 sayısını eleriz. 4 -7 – 8 ve 9 rakamların 2 si şifrede var.
3. adımda 964 de iki rakam doğru ama yerleri yanlış. Elde kalsın bunlar.
4. adımda 523 tümü yanlış ise bu rakamları da listemizden atalım. Daha önce 1 i atmıştım. Elde kalan 5 rakam şunlar: 4 – 6 – 7 – 8 – 9 ..
5. adımda 286 bir rakam doğru ama yeri yanlış. 2 olamaz çünkü 4. adımda 523 ün tümü yanlıştı. Buradan da ya 6 ya 8 i alacağız.
Şimdi bi özet geçelim. Ardından olasılıkları deneyelim. Olasılıkları denerken ortak sayılardan hareket etmek işimizi kolaylaştıracak. Şifremiz 4 – 6 – 7 – 8 – 9 sayılarından oluşacak.
2. ve 5. adımdan 8 elenir. Çünkü 189 da 8 in yeri doğru ise 286 da yeri doğru olması gerekir. Ama 286 için 1 rakam doğru ama yeri yanlış demiş. 8 giderse 2. adımdan 9 kesin kalır ve yeri doğrudur. O halde son rakam 9.
8 gittiğine göre 5. adımdan 6 kesin var deriz. Ama yeri yanlış. Çünkü son rakamı 9 bulmuştuk. 3. adıma göre ortada olamayacağına göre en başta kesin 6 var diyebiliriz.
3. adımdan 964 ten 6 ve 9 olduğuna göre o halde 4 olamaz. Buradan birinci ve ikinci adıma dönersek 4 yoksa 7 vardır diyebiliriz. Başta 6 sonra 9 olduğuna göre şifremiz 679 olur.
Şifre: 679
Riddle: I had 5 dollars. My mom gives me 10 dollars, while my dad gave me 30 dollars. My aunt and uncle give 100 dollars. I had another 5 dollars. How much money did I really have?
It is a nice riddle for those who are bored these days we spend in our homes. We have to brainstorm a little bit. Because it’s not an easy riddle. We need to know some math. In a little while reading the riddle requires attention. Now let’s explain it step by step.
The riddle asks us how much money you had in the past. not now. That’s why the money my uncle and aunt gave doesn’t matter. It doesn’t matter about the money my parents give too.
I had 5 $ and I had another 5 $. As a result, I had $ 10.
Riddle: At two meters a pole was erected. How many poles are there at a distance of 400 meters?
It’s a very simple math puzzle. At first you might think the answer is 200, but it’s not. First of all, let’s explain why the answer is not 200.
Suppose we have 2 poles. We can sew a new pole 2 meters after the first pole. So, we used 2 posts for the first 2 meters. We put another pole 2 meters after the 2nd pole. It was 3 poles and 4 meters in total.
If we move forward like this, We have to use 1 pole for every 2 meters. From here, 200 poles are required for 400 meters. Let’s not forget that we used a pole to start.
We need a total of 201 poles.